A new substitute host and its effects on some biological properties of Ooencyrtus kuvanae

TUNCA COSİC H., Venard M., Colombel E., Tabone E.

BULLETIN OF ENTOMOLOGICAL RESEARCH, cilt.107, sa.6, ss.742-748, 2017 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 107 Sayı: 6
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1017/s0007485317000244
  • Dergi Adı: BULLETIN OF ENTOMOLOGICAL RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.742-748
  • Anahtar Kelimeler: Lymantia dispar, Philosamia ricini, Ooencyrtus kuvanae, biology, LYMANTRIA-DISPAR LEPIDOPTERA, SAMIA-CYNTHIA-RICINI, GYPSY-MOTH, SEX-RATIO, EGG AGE, HYMENOPTERAN PARASITOIDS, INSECT PARASITOIDS, FACTITIOUS HOSTS, TRICHOGRAMMA, ENCYRTIDAE
  • Ankara Üniversitesi Adresli: Evet

Özet

Lymantia dispar (L.) (Lepidoptera: Lymantriidae), commonly known as the gypsy moth, is a serious forest pest, and beneficial insects are particularly important for reducing its population numbers. Ooencyrtus kuvanae (Howard) (Hymenoptera: Encyrtidae) is an arrhenotokous, solitary egg parasitoid of L. dispar. In this study, we evaluated a new substitute host, Philosamia ricini (Danovan) (Lepidoptera: Saturniidae) for O. kuvanae. We investigated some of the biological effects of O. kuvanae on P. ricini eggs. In this context, the importance of the age of the female parasitoid (1, 3 or 5 days old), host age (1-2 and 3-4 days old) and host number (40, 60 and 80 host eggs) were examined under laboratory conditions (25 +/- 1 degrees C, 65 +/- 5% relative humidity and a 16 : 8 h photoperiod [light : dark]). The highest rate of offspring production (89.90%) occurred with 40 (1-2-day-old) host eggs and 5-day-old females. The mean developmental period ranged from 16.5 +/- 0.08 days to 18.7 +/- 0.08 days. The mean lifespan of the parasitoid was 51.10 +/- 1.1 (n = 60) days with bio-honey and 3.92 +/- 0.14 (n = 60) days without food. The mean fecundity was 68.88 +/- 3.22 offspring/female. Peak adult emergence occurred between 2 and 9 days. The mean oviposition and mean post-oviposition periods of the female parasitoid were 22.76 +/- 1.37 days and 13.64 +/- 1.40 days, respectively. O. kuvanae was reared for more than ten generations on the eggs of P. ricini. Based on our findings, P. ricini can be used to rear O. kuvanae for the biological control of L. dispar.